Journal article

VORTICAL MOTION CONTRIBUTIONS TO STRESS TRANSPORT IN TURBULENT BOUNDARY-LAYERS

JC KLEWICKI, JA MURRAY, RE FALCO

PHYSICS OF FLUIDS | AMER INST PHYSICS | Published : 1994

Abstract

Four-wire hot-wire probe measurements are used to examine the relationships between the motions bearing spanwise vorticity, ωz, and the mechanisms responsible for turbulent stress transport. The measurements were carried out in thick zero pressure gradient turbulent boundary layers over the Reynolds number range, 1010 < Rθ < 4850. Because of the scale of the flow, the spatial resolution of the probe was, in general, very good. The capabilities of the probe allowed all of the terms in the balance equation for 〈u2〉, except the pressure strain correlation, to be directly measured. Regarding wall region vorticity dynamics, velocity-vorticity correlation measurements are used to investigate ωz mo..

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University of Melbourne Researchers